<!-- 下拉菜单 全部- 价格-分类  -->
<template>
  <div class="dropdown">
    <!-- 下拉菜单 -->
    <van-dropdown-menu>
      <van-dropdown-item disabled title="全部商品" />
      <van-dropdown-item
        v-model="value2"
        :options="option2"
        title="价格排序"
        @change="changePrice"
      />
      <van-dropdown-item
        v-model="value3"
        :options="filterCategory"
        title="分类"
        @change="changeCategory"
      />
    </van-dropdown-menu>
    <!-- 数据展示 -->
    <ul>
      <li v-for="(item, index) in goodList" :key="index">
        <img v-lazy="item.list_pic_url" alt="" />
        <p>{{ item.name }}</p>
        <span>{{ item.retail_price | formatPrice }}</span>
      </li>
    </ul>
  </div>
</template>

<script>
export default {
  data() {
    return {
      value2: "desc",
      // value3: "a",
      option2: [
        { text: "价格由高到低", value: "desc" },
        { text: "价格低到高", value: "asc" },
      ],
    };
  },
  props: ["filterCategory", "goodList"],
  computed: {
    value3: {
      get() {
        let val = "";
        this.filterCategory.forEach((item) => {
          if (item.checked) {
            val = item.value;
          }
        });
        return val;
      },
      set(m) {
        console.log(m);
      },
    },
  },
  created() {
    console.log(this.filterCategory);
    // 默认下拉菜单选中项
    // this.filterCategory.forEach((item) => {
    //   if (item.checked) {
    //     this.value3 = item.value;
    //   }
    // });
  },
  methods: {
    changePrice(value) {
      // 修改排序方式
      //console.log(value); // desc asc
      // 子传父 将 参数传给 searchPop 父组件
      this.$emit("changePrice", value);
    },
    changeCategory(value) {
      //修改类别方式
      //console.log(value);
      // 子传父 将 参数传给 searchPop 父组件
      this.$emit("changeCategory", value);
    },
  },
};
</script>
<style lang='less' scoped>
/* @import url(); 引入css类 */
.dropdown {
  ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    li {
      width: 49%;
      img {
        width: 100%;
        display: block;
      }
      p {
        font-size: 16px;
      }
    }
  }
}
</style>